Threaded Inserts, Threaded Bushing, for Wood | RS
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    Threaded Inserts

    A threaded insert is a cylindrical tube-shaped piece of metal with an internal thread. Threaded inserts are designed to be placed into existing holes to provide a threaded receptacle so that screws, bolts or other fixings can be installed. Threaded inserts with an external thread are also used to strengthen existing threads or to repair damaged threads usually in metalwork.

    How to fit a threaded insert

    The first step is to drill, mill tap or cut a hole of the recommended size into the material the insert will be embedded. The second step depends entirely on the type of insert, the material it will be used with and how the insert will be fitted.

    Types of Threaded Insert****For plastic

    Plastics are generally categorized into two main types Thermoplastic and Thermoset. These two plastics may sound similar but their physical characteristics are very different. Therefore the type of insert used is different.

    • Thermoset

    Thermoset plastics, due to cross-linking polymers at the curing stage enhance the materials physical and mechanical properties. This process makes thermoset plastic easier to mill and drill, so a press-fit threaded insert is better for this application.

    • Thermoplastic

    Threaded inserts for thermoplastic materials are more specialized and require a slightly different approach. Inserts are installed by heating the metal insert to a specific temperature. Once the desired temperature is reached the threaded insert is pressed onto the plastic. The heat from the metal melts the plastic and the insert fits into the desired position. When the plastic cools the insert is retained.

    Threaded inserts for metal

    Threaded inserts for metal have an external thread. The insert is simply matched by thread size and screwed into the existing threaded hole.

    Threaded inserts for wood

    It is possible to use both press-in and thread-in inserts in wood. If however a hardwood is being used it is advised to prepare a slightly larger hole than the insert and secure with a suitable adhesive. Hardwoods have a higher chance of cracking than other woods.

    Materials and finishes

    Threaded inserts are available in various materials and finishes and metric course threads to suit every application.

    • Brass

    • Steel

    • Stainless Steel (316 & 302)

    • Bright zinc plated

    • Clear passivated

    • Galvanised

    • Plain

    Thread sizes

    M3, M3.5, M4, M5, M6, M8 and M10

    173 Producten voor Threaded Inserts

    RS PRO
    M3
    -
    4mm
    4.22mm
    4.78mm
    Brass
    -
    -
    -
    6.7mm
    RS PRO
    M3
    -
    4mm
    4.22mm
    4.78mm
    Brass
    -
    -
    -
    6.2mm
    RS PRO
    M3
    4.6mm
    4mm
    4.6mm
    5.7mm
    Brass
    -
    -
    1.6mm
    -
    RS PRO
    M6
    8.7mm
    8mm
    8.7mm
    12.7mm
    Brass
    -
    -
    3.3mm
    -
    RS PRO
    M6
    -
    8mm
    8.26mm
    12.7mm
    Brass
    -
    -
    -
    16mm
    RS PRO
    M3
    5.5mm
    4mm
    5.5mm
    5.7mm
    Brass
    -
    -
    1.6mm
    -
    RS PRO
    M4
    -
    5.6mm
    5.64mm
    7.95mm
    Brass
    -
    -
    -
    10.2mm
    RS PRO
    M8
    -
    11mm
    -
    -
    -
    -
    Plain
    5.5mm
    3.5mm
    RS PRO
    M4
    6.3mm
    5.6mm
    6.3mm
    8.2mm
    Brass
    -
    -
    2.1mm
    -
    RS PRO
    M6
    9.5mm
    8mm
    9.5mm
    12.7mm
    Brass
    -
    -
    3.3mm
    -
    RS PRO
    M4
    7.1mm
    5.6mm
    7.1mm
    8.2mm
    Brass
    -
    -
    2.1mm
    -
    RS PRO
    M5
    7.1mm
    6.4mm
    7.1mm
    9.5mm
    Brass
    -
    -
    2.6mm
    -
    RS PRO
    M5
    8mm
    6.4mm
    6.65mm
    9.53mm
    Brass
    -
    -
    -
    11.2mm
    RS PRO
    M5
    7.9mm
    6.4mm
    7.9mm
    9.5mm
    Brass
    -
    -
    2.6mm
    -
    RS PRO
    M10
    -
    13mm
    -
    -
    -
    -
    Plain
    3.5mm
    1mm
    RS PRO
    M3.5
    -
    4.8mm
    5.06mm
    6.35mm
    Brass
    -
    -
    -
    8.4mm
    RS PRO
    M8
    -
    11mm
    -
    -
    -
    -
    Plain
    4.5mm
    2mm
    RS PRO
    M5
    -
    6.4mm
    6.65mm
    9.35mm
    Brass
    -
    -
    -
    12.2mm
    RS PRO
    M4
    -
    5.6mm
    5.64mm
    7.95mm
    Brass
    -
    -
    -
    9.4mm
    RS PRO
    M10
    -
    13mm
    -
    -
    -
    -
    Plain
    6mm
    4mm
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